Edited Landsat 8 image of one of the deep blue holes in the Caribbean Sea. Once seen as too remote to harm, the deep sea is facing new pressures from mining, pollution, overfishing and more. (Photo: Stuart Rankin / Flickr)

Imagine sinking into the deepest parts of the Central Pacific Ocean, somewhere between Mexico and Hawaii. Watch as the water turns from clear to blue to dark blue to black. And then continue on for another 15,000 feet (4,600 meters) to the seafloor — roughly the distance from the peak of California’s Mount Whitney to the bottom of nearby Death Valley.

Climate change may make the rich richer and the poor poorer in the United States.

Counties in the South face a higher risk of economic downturn due to climate change than their northern counterparts, a new computer simulation predicts. Because southern counties generally host poorer populations, the new findings, reported in the June 30 Science, suggest that climate change will worsen existing wealth disparities.

The alarm that greeted President Donald Trump’s announcement that the U.S. will withdraw from the Paris climate accord was an overreaction in one respect. The pace at which the world moves away from fossil fuels won’t, in fact, be greatly affected. The other countries Continue reading America Last→